Remove svelte/ssr resolving

Author: benmccann

packages/vite-plugin-svelte/package.json

@@ -54,7 +54,7 @@
   },
   "peerDependencies": {
     "diff-match-patch": "^1.0.5",
-    "svelte": "^3.34.0",
+    "svelte": "^3.43.0",
     "vite": "^2.5.3"
   },
   "peerDependenciesMeta": {
@@ -68,7 +68,7 @@
     "diff-match-patch": "^1.0.5",
     "esbuild": "^0.12.28",
     "rollup": "^2.56.3",
-    "svelte": "^3.42.6",
+    "svelte": "^3.43.0",
     "tsup": "^5.1.0",
     "vite": "^2.5.10"
   }

packages/vite-plugin-svelte/src/index.ts

@@ -16,7 +16,6 @@ import { VitePluginSvelteCache } from './utils/vite-plugin-svelte-cache';
 import { ensureWatchedFile, setupWatchers } from './utils/watch';
 import { resolveViaPackageJsonSvelte } from './utils/resolve';
 import { addExtraPreprocessors } from './utils/preprocess';
-import { PartialResolvedId } from 'rollup';
 
 export function svelte(inlineOptions?: Partial<Options>): Plugin {
 	if (process.env.DEBUG != null) {
@@ -37,8 +36,6 @@ export function svelte(inlineOptions?: Partial<Options>): Plugin {
 	) => Promise<CompileData>;
 	/* eslint-enable no-unused-vars */
 
-	let resolvedSvelteSSR: Promise<PartialResolvedId | null>;
-
 	return {
 		name: 'vite-plugin-svelte',
 		// make sure our resolver runs before vite internal resolver to resolve svelte field correctly
@@ -104,25 +101,6 @@ export function svelte(inlineOptions?: Partial<Options>): Plugin {
 				return importee; // query with svelte tag, an id we generated, no need for further analysis
 			}
 
-			if (ssr && importee === 'svelte') {
-				if (!resolvedSvelteSSR) {
-					resolvedSvelteSSR = this.resolve('svelte/ssr', undefined, { skipSelf: true }).then(
-						(svelteSSR) => {
-							log.debug('resolved svelte to svelte/ssr');
-							return svelteSSR;
-						},
-						(err) => {
-							log.debug(
-								'failed to resolve svelte to svelte/ssr. Update svelte to a version that exports it',
-								err
-							);
-							return null; // returning null here leads to svelte getting resolved regularly
-						}
-					);
-				}
-				return resolvedSvelteSSR;
-			}
-
 			try {
 				const resolved = resolveViaPackageJsonSvelte(importee, importer);
 				if (resolved) {

packages/vite-plugin-svelte/src/utils/constants.ts

@@ -7,7 +7,6 @@ export const SVELTE_IMPORTS = [
 	'svelte/easing',
 	'svelte/internal',
 	'svelte/motion',
-	'svelte/ssr',
 	'svelte/store',
 	'svelte/transition',
 	'svelte'

packages/vite-plugin-svelte/src/utils/options.ts

@@ -242,11 +242,8 @@ function buildOptimizeDepsForSvelte(
 		);
 	};
 	if (!isExcluded('svelte')) {
-		const svelteImportsToInclude = SVELTE_IMPORTS.filter((x) => x !== 'svelte/ssr'); // not used on clientside
-		log.debug(
-			`adding bare svelte packages to optimizeDeps.include: ${svelteImportsToInclude.join(', ')} `
-		);
-		include.push(...svelteImportsToInclude.filter((x) => !isIncluded(x)));
+		log.debug(`adding bare svelte packages to optimizeDeps.include: ${SVELTE_IMPORTS.join(', ')} `);
+		include.push(...SVELTE_IMPORTS.filter((x) => !isIncluded(x)));
 	} else {
 		log.debug('"svelte" is excluded in optimizeDeps.exclude, skipped adding it to include.');
 	}